Merge commit '3ff195b011d7decf501a4d55aeed312731094796' into for-linus

Conflicts:
	drivers/md/md.c

- Resolved conflict in md_update_sb
- Added extra 'NULL' arg to new instance of sysfs_get_dirent.

Signed-off-by: NeilBrown <neilb@suse.de>

49 files changed, 796 insertions, 55 deletions

diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index 6a1303759432..50ac047cd136 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -620,6 +620,16 @@ config RTC_DRV_NUC900
 
 comment "on-CPU RTC drivers"
 
+config RTC_DRV_DAVINCI
+        tristate "TI DaVinci RTC"
+        depends on ARCH_DAVINCI_DM365
+        help
+          If you say yes here you get support for the RTC on the
+          DaVinci platforms (DM365).
+
+          This driver can also be built as a module. If so, the module
+          will be called rtc-davinci.
+
 config RTC_DRV_OMAP
         tristate "TI OMAP1"
         depends on ARCH_OMAP15XX || ARCH_OMAP16XX || ARCH_OMAP730 || ARCH_DAVINCI_DA8XX
diff --git a/drivers/rtc/Makefile b/drivers/rtc/Makefile
index 44ef194a9573..245311a1348f 100644
--- a/drivers/rtc/Makefile
+++ b/drivers/rtc/Makefile
@@ -27,6 +27,7 @@ obj-$(CONFIG_RTC_DRV_BQ32K)	+= rtc-bq32k.o
 obj-$(CONFIG_RTC_DRV_BQ4802)    += rtc-bq4802.o
 obj-$(CONFIG_RTC_DRV_CMOS)      += rtc-cmos.o
 obj-$(CONFIG_RTC_DRV_COH901331) += rtc-coh901331.o
+obj-$(CONFIG_RTC_DRV_DAVINCI)   += rtc-davinci.o
 obj-$(CONFIG_RTC_DRV_DM355EVM)  += rtc-dm355evm.o
 obj-$(CONFIG_RTC_DRV_DS1216)    += rtc-ds1216.o
 obj-$(CONFIG_RTC_DRV_DS1286)    += rtc-ds1286.o
diff --git a/drivers/rtc/class.c b/drivers/rtc/class.c
index 40845c7e9322..565562ba6ac9 100644
--- a/drivers/rtc/class.c
+++ b/drivers/rtc/class.c
@@ -15,6 +15,7 @@
 #include <linux/rtc.h>
 #include <linux/kdev_t.h>
 #include <linux/idr.h>
+#include <linux/slab.h>
 
 #include "rtc-core.h"
 
diff --git a/drivers/rtc/hctosys.c b/drivers/rtc/hctosys.c
index 33c0e98243ee..bc90b091f195 100644
--- a/drivers/rtc/hctosys.c
+++ b/drivers/rtc/hctosys.c
@@ -22,48 +22,57 @@
  * the best guess is to add 0.5s.
  */
 
+int rtc_hctosys_ret = -ENODEV;
+
 static int __init rtc_hctosys(void)
 {
-        int err;
+        int err = -ENODEV;
         struct rtc_time tm;
+        struct timespec tv = {
+                .tv_nsec = NSEC_PER_SEC >> 1,
+        };
         struct rtc_device *rtc = rtc_class_open(CONFIG_RTC_HCTOSYS_DEVICE);
 
         if (rtc == NULL) {
-                printk("%s: unable to open rtc device (%s)\n",
+                pr_err("%s: unable to open rtc device (%s)\n",
                         __FILE__, CONFIG_RTC_HCTOSYS_DEVICE);
-                return -ENODEV;
+                goto err_open;
         }
 
         err = rtc_read_time(rtc, &tm);
-        if (err == 0) {
-                err = rtc_valid_tm(&tm);
-                if (err == 0) {
-                        struct timespec tv;
+        if (err) {
+                dev_err(rtc->dev.parent,
+                        "hctosys: unable to read the hardware clock\n");
+                goto err_read;
 
-                        tv.tv_nsec = NSEC_PER_SEC >> 1;
+        }
 
-                        rtc_tm_to_time(&tm, &tv.tv_sec);
+        err = rtc_valid_tm(&tm);
+        if (err) {
+                dev_err(rtc->dev.parent,
+                        "hctosys: invalid date/time\n");
+                goto err_invalid;
+        }
 
-                        do_settimeofday(&tv);
+        rtc_tm_to_time(&tm, &tv.tv_sec);
 
-                        dev_info(rtc->dev.parent,
-                                "setting system clock to "
-                                "%d-%02d-%02d %02d:%02d:%02d UTC (%u)\n",
-                                tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday,
-                                tm.tm_hour, tm.tm_min, tm.tm_sec,
-                                (unsigned int) tv.tv_sec);
-                }
-                else
-                        dev_err(rtc->dev.parent,
-                                "hctosys: invalid date/time\n");
-        }
-        else
-                dev_err(rtc->dev.parent,
-                        "hctosys: unable to read the hardware clock\n");
+        do_settimeofday(&tv);
 
+        dev_info(rtc->dev.parent,
+                "setting system clock to "
+                "%d-%02d-%02d %02d:%02d:%02d UTC (%u)\n",
+                tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday,
+                tm.tm_hour, tm.tm_min, tm.tm_sec,
+                (unsigned int) tv.tv_sec);
+
+err_invalid:
+err_read:
         rtc_class_close(rtc);
 
-        return 0;
+err_open:
+        rtc_hctosys_ret = err;
+
+        return err;
 }
 
 late_initcall(rtc_hctosys);
diff --git a/drivers/rtc/rtc-at32ap700x.c b/drivers/rtc/rtc-at32ap700x.c
index 8825695777df..b2752b6e7a2f 100644
--- a/drivers/rtc/rtc-at32ap700x.c
+++ b/drivers/rtc/rtc-at32ap700x.c
@@ -11,6 +11,7 @@
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/platform_device.h>
+#include <linux/slab.h>
 #include <linux/rtc.h>
 #include <linux/io.h>
 
diff --git a/drivers/rtc/rtc-at91sam9.c b/drivers/rtc/rtc-at91sam9.c
index 78a018b5c941..f677e0710ca1 100644
--- a/drivers/rtc/rtc-at91sam9.c
+++ b/drivers/rtc/rtc-at91sam9.c
@@ -18,6 +18,7 @@
 #include <linux/rtc.h>
 #include <linux/interrupt.h>
 #include <linux/ioctl.h>
+#include <linux/slab.h>
 
 #include <mach/board.h>
 #include <mach/at91_rtt.h>
diff --git a/drivers/rtc/rtc-bfin.c b/drivers/rtc/rtc-bfin.c
index b11485b9f21c..72b2bcc2c224 100644
--- a/drivers/rtc/rtc-bfin.c
+++ b/drivers/rtc/rtc-bfin.c
@@ -51,6 +51,7 @@
 #include <linux/platform_device.h>
 #include <linux/rtc.h>
 #include <linux/seq_file.h>
+#include <linux/slab.h>
 
 #include <asm/blackfin.h>
 
diff --git a/drivers/rtc/rtc-bq4802.c b/drivers/rtc/rtc-bq4802.c
index 280fe48ada0b..128270ce355d 100644
--- a/drivers/rtc/rtc-bq4802.c
+++ b/drivers/rtc/rtc-bq4802.c
@@ -10,6 +10,7 @@
 #include <linux/platform_device.h>
 #include <linux/rtc.h>
 #include <linux/bcd.h>
+#include <linux/slab.h>
 
 MODULE_AUTHOR("David S. Miller <davem@davemloft.net>");
 MODULE_DESCRIPTION("TI BQ4802 RTC driver");
diff --git a/drivers/rtc/rtc-coh901331.c b/drivers/rtc/rtc-coh901331.c
index 44c4399ee714..316f484999b5 100644
--- a/drivers/rtc/rtc-coh901331.c
+++ b/drivers/rtc/rtc-coh901331.c
@@ -14,6 +14,7 @@
 #include <linux/pm.h>
 #include <linux/platform_device.h>
 #include <linux/io.h>
+#include <linux/slab.h>
 
 /*
  * Registers in the COH 901 331
diff --git a/drivers/rtc/rtc-davinci.c b/drivers/rtc/rtc-davinci.c
new file mode 100644
index 000000000000..92a8f6cacda9
--- /dev/null
+++ b/drivers/rtc/rtc-davinci.c
@@ -0,0 +1,673 @@
+/*
+ * DaVinci Power Management and Real Time Clock Driver for TI platforms
+ *
+ * Copyright (C) 2009 Texas Instruments, Inc
+ *
+ * Author: Miguel Aguilar <miguel.aguilar@ridgerun.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/ioport.h>
+#include <linux/delay.h>
+#include <linux/spinlock.h>
+#include <linux/rtc.h>
+#include <linux/bcd.h>
+#include <linux/platform_device.h>
+#include <linux/io.h>
+
+/*
+ * The DaVinci RTC is a simple RTC with the following
+ * Sec: 0 - 59 : BCD count
+ * Min: 0 - 59 : BCD count
+ * Hour: 0 - 23 : BCD count
+ * Day: 0 - 0x7FFF(32767) : Binary count ( Over 89 years )
+ */
+
+/* PRTC interface registers */
+#define DAVINCI_PRTCIF_PID              0x00
+#define PRTCIF_CTLR                     0x04
+#define PRTCIF_LDATA                    0x08
+#define PRTCIF_UDATA                    0x0C
+#define PRTCIF_INTEN                    0x10
+#define PRTCIF_INTFLG                   0x14
+
+/* PRTCIF_CTLR bit fields */
+#define PRTCIF_CTLR_BUSY                BIT(31)
+#define PRTCIF_CTLR_SIZE                BIT(25)
+#define PRTCIF_CTLR_DIR                 BIT(24)
+#define PRTCIF_CTLR_BENU_MSB            BIT(23)
+#define PRTCIF_CTLR_BENU_3RD_BYTE       BIT(22)
+#define PRTCIF_CTLR_BENU_2ND_BYTE       BIT(21)
+#define PRTCIF_CTLR_BENU_LSB            BIT(20)
+#define PRTCIF_CTLR_BENU_MASK           (0x00F00000)
+#define PRTCIF_CTLR_BENL_MSB            BIT(19)
+#define PRTCIF_CTLR_BENL_3RD_BYTE       BIT(18)
+#define PRTCIF_CTLR_BENL_2ND_BYTE       BIT(17)
+#define PRTCIF_CTLR_BENL_LSB            BIT(16)
+#define PRTCIF_CTLR_BENL_MASK           (0x000F0000)
+
+/* PRTCIF_INTEN bit fields */
+#define PRTCIF_INTEN_RTCSS              BIT(1)
+#define PRTCIF_INTEN_RTCIF              BIT(0)
+#define PRTCIF_INTEN_MASK               (PRTCIF_INTEN_RTCSS \
+                                        | PRTCIF_INTEN_RTCIF)
+
+/* PRTCIF_INTFLG bit fields */
+#define PRTCIF_INTFLG_RTCSS             BIT(1)
+#define PRTCIF_INTFLG_RTCIF             BIT(0)
+#define PRTCIF_INTFLG_MASK              (PRTCIF_INTFLG_RTCSS \
+                                        | PRTCIF_INTFLG_RTCIF)
+
+/* PRTC subsystem registers */
+#define PRTCSS_RTC_INTC_EXTENA1         (0x0C)
+#define PRTCSS_RTC_CTRL                 (0x10)
+#define PRTCSS_RTC_WDT                  (0x11)
+#define PRTCSS_RTC_TMR0                 (0x12)
+#define PRTCSS_RTC_TMR1                 (0x13)
+#define PRTCSS_RTC_CCTRL                (0x14)
+#define PRTCSS_RTC_SEC                  (0x15)
+#define PRTCSS_RTC_MIN                  (0x16)
+#define PRTCSS_RTC_HOUR                 (0x17)
+#define PRTCSS_RTC_DAY0                 (0x18)
+#define PRTCSS_RTC_DAY1                 (0x19)
+#define PRTCSS_RTC_AMIN                 (0x1A)
+#define PRTCSS_RTC_AHOUR                (0x1B)
+#define PRTCSS_RTC_ADAY0                (0x1C)
+#define PRTCSS_RTC_ADAY1                (0x1D)
+#define PRTCSS_RTC_CLKC_CNT             (0x20)
+
+/* PRTCSS_RTC_INTC_EXTENA1 */
+#define PRTCSS_RTC_INTC_EXTENA1_MASK    (0x07)
+
+/* PRTCSS_RTC_CTRL bit fields */
+#define PRTCSS_RTC_CTRL_WDTBUS          BIT(7)
+#define PRTCSS_RTC_CTRL_WEN             BIT(6)
+#define PRTCSS_RTC_CTRL_WDRT            BIT(5)
+#define PRTCSS_RTC_CTRL_WDTFLG          BIT(4)
+#define PRTCSS_RTC_CTRL_TE              BIT(3)
+#define PRTCSS_RTC_CTRL_TIEN            BIT(2)
+#define PRTCSS_RTC_CTRL_TMRFLG          BIT(1)
+#define PRTCSS_RTC_CTRL_TMMD            BIT(0)
+
+/* PRTCSS_RTC_CCTRL bit fields */
+#define PRTCSS_RTC_CCTRL_CALBUSY        BIT(7)
+#define PRTCSS_RTC_CCTRL_DAEN           BIT(5)
+#define PRTCSS_RTC_CCTRL_HAEN           BIT(4)
+#define PRTCSS_RTC_CCTRL_MAEN           BIT(3)
+#define PRTCSS_RTC_CCTRL_ALMFLG         BIT(2)
+#define PRTCSS_RTC_CCTRL_AIEN           BIT(1)
+#define PRTCSS_RTC_CCTRL_CAEN           BIT(0)
+
+static DEFINE_SPINLOCK(davinci_rtc_lock);
+
+struct davinci_rtc {
+        struct rtc_device               *rtc;
+        void __iomem                    *base;
+        resource_size_t                 pbase;
+        size_t                          base_size;
+        int                             irq;
+};
+
+static inline void rtcif_write(struct davinci_rtc *davinci_rtc,
+                               u32 val, u32 addr)
+{
+        writel(val, davinci_rtc->base + addr);
+}
+
+static inline u32 rtcif_read(struct davinci_rtc *davinci_rtc, u32 addr)
+{
+        return readl(davinci_rtc->base + addr);
+}
+
+static inline void rtcif_wait(struct davinci_rtc *davinci_rtc)
+{
+        while (rtcif_read(davinci_rtc, PRTCIF_CTLR) & PRTCIF_CTLR_BUSY)
+                cpu_relax();
+}
+
+static inline void rtcss_write(struct davinci_rtc *davinci_rtc,
+                               unsigned long val, u8 addr)
+{
+        rtcif_wait(davinci_rtc);
+
+        rtcif_write(davinci_rtc, PRTCIF_CTLR_BENL_LSB | addr, PRTCIF_CTLR);
+        rtcif_write(davinci_rtc, val, PRTCIF_LDATA);
+
+        rtcif_wait(davinci_rtc);
+}
+
+static inline u8 rtcss_read(struct davinci_rtc *davinci_rtc, u8 addr)
+{
+        rtcif_wait(davinci_rtc);
+
+        rtcif_write(davinci_rtc, PRTCIF_CTLR_DIR | PRTCIF_CTLR_BENL_LSB | addr,
+                    PRTCIF_CTLR);
+
+        rtcif_wait(davinci_rtc);
+
+        return rtcif_read(davinci_rtc, PRTCIF_LDATA);
+}
+
+static inline void davinci_rtcss_calendar_wait(struct davinci_rtc *davinci_rtc)
+{
+        while (rtcss_read(davinci_rtc, PRTCSS_RTC_CCTRL) &
+               PRTCSS_RTC_CCTRL_CALBUSY)
+                cpu_relax();
+}
+
+static irqreturn_t davinci_rtc_interrupt(int irq, void *class_dev)
+{
+        struct davinci_rtc *davinci_rtc = class_dev;
+        unsigned long events = 0;
+        u32 irq_flg;
+        u8 alm_irq, tmr_irq;
+        u8 rtc_ctrl, rtc_cctrl;
+        int ret = IRQ_NONE;
+
+        irq_flg = rtcif_read(davinci_rtc, PRTCIF_INTFLG) &
+                  PRTCIF_INTFLG_RTCSS;
+
+        alm_irq = rtcss_read(davinci_rtc, PRTCSS_RTC_CCTRL) &
+                  PRTCSS_RTC_CCTRL_ALMFLG;
+
+        tmr_irq = rtcss_read(davinci_rtc, PRTCSS_RTC_CTRL) &
+                  PRTCSS_RTC_CTRL_TMRFLG;
+
+        if (irq_flg) {
+                if (alm_irq) {
+                        events |= RTC_IRQF | RTC_AF;
+                        rtc_cctrl = rtcss_read(davinci_rtc, PRTCSS_RTC_CCTRL);
+                        rtc_cctrl |=  PRTCSS_RTC_CCTRL_ALMFLG;
+                        rtcss_write(davinci_rtc, rtc_cctrl, PRTCSS_RTC_CCTRL);
+                } else if (tmr_irq) {
+                        events |= RTC_IRQF | RTC_PF;
+                        rtc_ctrl = rtcss_read(davinci_rtc, PRTCSS_RTC_CTRL);
+                        rtc_ctrl |=  PRTCSS_RTC_CTRL_TMRFLG;
+                        rtcss_write(davinci_rtc, rtc_ctrl, PRTCSS_RTC_CTRL);
+                }
+
+                rtcif_write(davinci_rtc, PRTCIF_INTFLG_RTCSS,
+                                    PRTCIF_INTFLG);
+                rtc_update_irq(davinci_rtc->rtc, 1, events);
+
+                ret = IRQ_HANDLED;
+        }
+
+        return ret;
+}
+
+static int
+davinci_rtc_ioctl(struct device *dev, unsigned int cmd, unsigned long arg)
+{
+        struct davinci_rtc *davinci_rtc = dev_get_drvdata(dev);
+        u8 rtc_ctrl;
+        unsigned long flags;
+        int ret = 0;
+
+        spin_lock_irqsave(&davinci_rtc_lock, flags);
+
+        rtc_ctrl = rtcss_read(davinci_rtc, PRTCSS_RTC_CTRL);
+
+        switch (cmd) {
+        case RTC_WIE_ON:
+                rtc_ctrl |= PRTCSS_RTC_CTRL_WEN | PRTCSS_RTC_CTRL_WDTFLG;
+                break;
+        case RTC_WIE_OFF:
+                rtc_ctrl &= ~PRTCSS_RTC_CTRL_WEN;
+                break;
+        case RTC_UIE_OFF:
+        case RTC_UIE_ON:
+                ret = -ENOTTY;
+                break;
+        default:
+                ret = -ENOIOCTLCMD;
+        }
+
+        rtcss_write(davinci_rtc, rtc_ctrl, PRTCSS_RTC_CTRL);
+
+        spin_unlock_irqrestore(&davinci_rtc_lock, flags);
+
+        return ret;
+}
+
+static int convertfromdays(u16 days, struct rtc_time *tm)
+{
+        int tmp_days, year, mon;
+
+        for (year = 2000;; year++) {
+                tmp_days = rtc_year_days(1, 12, year);
+                if (days >= tmp_days)
+                        days -= tmp_days;
+                else {
+                        for (mon = 0;; mon++) {
+                                tmp_days = rtc_month_days(mon, year);
+                                if (days >= tmp_days) {
+                                        days -= tmp_days;
+                                } else {
+                                        tm->tm_year = year - 1900;
+                                        tm->tm_mon = mon;
+                                        tm->tm_mday = days + 1;
+                                        break;
+                                }
+                        }
+                        break;
+                }
+        }
+        return 0;
+}
+
+static int convert2days(u16 *days, struct rtc_time *tm)
+{
+        int i;
+        *days = 0;
+
+        /* epoch == 1900 */
+        if (tm->tm_year < 100 || tm->tm_year > 199)
+                return -EINVAL;
+
+        for (i = 2000; i < 1900 + tm->tm_year; i++)
+                *days += rtc_year_days(1, 12, i);
+
+        *days += rtc_year_days(tm->tm_mday, tm->tm_mon, 1900 + tm->tm_year);
+
+        return 0;
+}
+
+static int davinci_rtc_read_time(struct device *dev, struct rtc_time *tm)
+{
+        struct davinci_rtc *davinci_rtc = dev_get_drvdata(dev);
+        u16 days = 0;
+        u8 day0, day1;
+        unsigned long flags;
+
+        spin_lock_irqsave(&davinci_rtc_lock, flags);
+
+        davinci_rtcss_calendar_wait(davinci_rtc);
+        tm->tm_sec = bcd2bin(rtcss_read(davinci_rtc, PRTCSS_RTC_SEC));
+
+        davinci_rtcss_calendar_wait(davinci_rtc);
+        tm->tm_min = bcd2bin(rtcss_read(davinci_rtc, PRTCSS_RTC_MIN));
+
+        davinci_rtcss_calendar_wait(davinci_rtc);
+        tm->tm_hour = bcd2bin(rtcss_read(davinci_rtc, PRTCSS_RTC_HOUR));
+
+        davinci_rtcss_calendar_wait(davinci_rtc);
+        day0 = rtcss_read(davinci_rtc, PRTCSS_RTC_DAY0);
+
+        davinci_rtcss_calendar_wait(davinci_rtc);
+        day1 = rtcss_read(davinci_rtc, PRTCSS_RTC_DAY1);
+
+        spin_unlock_irqrestore(&davinci_rtc_lock, flags);
+
+        days |= day1;
+        days <<= 8;
+        days |= day0;
+
+        if (convertfromdays(days, tm) < 0)
+                return -EINVAL;
+
+        return 0;
+}
+
+static int davinci_rtc_set_time(struct device *dev, struct rtc_time *tm)
+{
+        struct davinci_rtc *davinci_rtc = dev_get_drvdata(dev);
+        u16 days;
+        u8 rtc_cctrl;
+        unsigned long flags;
+
+        if (convert2days(&days, tm) < 0)
+                return -EINVAL;
+
+        spin_lock_irqsave(&davinci_rtc_lock, flags);
+
+        davinci_rtcss_calendar_wait(davinci_rtc);
+        rtcss_write(davinci_rtc, bin2bcd(tm->tm_sec), PRTCSS_RTC_SEC);
+
+        davinci_rtcss_calendar_wait(davinci_rtc);
+        rtcss_write(davinci_rtc, bin2bcd(tm->tm_min), PRTCSS_RTC_MIN);
+
+        davinci_rtcss_calendar_wait(davinci_rtc);
+        rtcss_write(davinci_rtc, bin2bcd(tm->tm_hour), PRTCSS_RTC_HOUR);
+
+        davinci_rtcss_calendar_wait(davinci_rtc);
+        rtcss_write(davinci_rtc, days & 0xFF, PRTCSS_RTC_DAY0);
+
+        davinci_rtcss_calendar_wait(davinci_rtc);
+        rtcss_write(davinci_rtc, (days & 0xFF00) >> 8, PRTCSS_RTC_DAY1);
+
+        rtc_cctrl = rtcss_read(davinci_rtc, PRTCSS_RTC_CCTRL);
+        rtc_cctrl |= PRTCSS_RTC_CCTRL_CAEN;
+        rtcss_write(davinci_rtc, rtc_cctrl, PRTCSS_RTC_CCTRL);
+
+        spin_unlock_irqrestore(&davinci_rtc_lock, flags);
+
+        return 0;
+}
+
+static int davinci_rtc_alarm_irq_enable(struct device *dev,
+                                        unsigned int enabled)
+{
+        struct davinci_rtc *davinci_rtc = dev_get_drvdata(dev);
+        unsigned long flags;
+        u8 rtc_cctrl = rtcss_read(davinci_rtc, PRTCSS_RTC_CCTRL);
+
+        spin_lock_irqsave(&davinci_rtc_lock, flags);
+
+        if (enabled)
+                rtc_cctrl |= PRTCSS_RTC_CCTRL_DAEN |
+                             PRTCSS_RTC_CCTRL_HAEN |
+                             PRTCSS_RTC_CCTRL_MAEN |
+                             PRTCSS_RTC_CCTRL_ALMFLG |
+                             PRTCSS_RTC_CCTRL_AIEN;
+        else
+                rtc_cctrl &= ~PRTCSS_RTC_CCTRL_AIEN;
+
+        davinci_rtcss_calendar_wait(davinci_rtc);
+        rtcss_write(davinci_rtc, rtc_cctrl, PRTCSS_RTC_CCTRL);
+
+        spin_unlock_irqrestore(&davinci_rtc_lock, flags);
+
+        return 0;
+}
+
+static int davinci_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alm)
+{
+        struct davinci_rtc *davinci_rtc = dev_get_drvdata(dev);
+        u16 days = 0;
+        u8 day0, day1;
+        unsigned long flags;
+
+        spin_lock_irqsave(&davinci_rtc_lock, flags);
+
+        davinci_rtcss_calendar_wait(davinci_rtc);
+        alm->time.tm_min = bcd2bin(rtcss_read(davinci_rtc, PRTCSS_RTC_AMIN));
+
+        davinci_rtcss_calendar_wait(davinci_rtc);
+        alm->time.tm_hour = bcd2bin(rtcss_read(davinci_rtc, PRTCSS_RTC_AHOUR));
+
+        davinci_rtcss_calendar_wait(davinci_rtc);
+        day0 = rtcss_read(davinci_rtc, PRTCSS_RTC_ADAY0);
+
+        davinci_rtcss_calendar_wait(davinci_rtc);
+        day1 = rtcss_read(davinci_rtc, PRTCSS_RTC_ADAY1);
+
+        spin_unlock_irqrestore(&davinci_rtc_lock, flags);
+        days |= day1;
+        days <<= 8;
+        days |= day0;
+
+        if (convertfromdays(days, &alm->time) < 0)
+                return -EINVAL;
+
+        alm->pending = !!(rtcss_read(davinci_rtc,
+                          PRTCSS_RTC_CCTRL) &
+                        PRTCSS_RTC_CCTRL_AIEN);
+        alm->enabled = alm->pending && device_may_wakeup(dev);
+
+        return 0;
+}
+
+static int davinci_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alm)
+{
+        struct davinci_rtc *davinci_rtc = dev_get_drvdata(dev);
+        unsigned long flags;
+        u16 days;
+
+        if (alm->time.tm_mday <= 0 && alm->time.tm_mon < 0
+            && alm->time.tm_year < 0) {
+                struct rtc_time tm;
+                unsigned long now, then;
+
+                davinci_rtc_read_time(dev, &tm);
+                rtc_tm_to_time(&tm, &now);
+
+                alm->time.tm_mday = tm.tm_mday;
+                alm->time.tm_mon = tm.tm_mon;
+                alm->time.tm_year = tm.tm_year;
+                rtc_tm_to_time(&alm->time, &then);
+
+                if (then < now) {
+                        rtc_time_to_tm(now + 24 * 60 * 60, &tm);
+                        alm->time.tm_mday = tm.tm_mday;
+                        alm->time.tm_mon = tm.tm_mon;
+                        alm->time.tm_year = tm.tm_year;
+                }
+        }
+
+        if (convert2days(&days, &alm->time) < 0)
+                return -EINVAL;
+
+        spin_lock_irqsave(&davinci_rtc_lock, flags);
+
+        davinci_rtcss_calendar_wait(davinci_rtc);
+        rtcss_write(davinci_rtc, bin2bcd(alm->time.tm_min), PRTCSS_RTC_AMIN);
+
+        davinci_rtcss_calendar_wait(davinci_rtc);
+        rtcss_write(davinci_rtc, bin2bcd(alm->time.tm_hour), PRTCSS_RTC_AHOUR);
+
+        davinci_rtcss_calendar_wait(davinci_rtc);
+        rtcss_write(davinci_rtc, days & 0xFF, PRTCSS_RTC_ADAY0);
+
+        davinci_rtcss_calendar_wait(davinci_rtc);
+        rtcss_write(davinci_rtc, (days & 0xFF00) >> 8, PRTCSS_RTC_ADAY1);
+
+        spin_unlock_irqrestore(&davinci_rtc_lock, flags);
+
+        return 0;
+}
+
+static int davinci_rtc_irq_set_state(struct device *dev, int enabled)
+{
+        struct davinci_rtc *davinci_rtc = dev_get_drvdata(dev);
+        unsigned long flags;
+        u8 rtc_ctrl;
+
+        spin_lock_irqsave(&davinci_rtc_lock, flags);
+
+        rtc_ctrl = rtcss_read(davinci_rtc, PRTCSS_RTC_CTRL);
+
+        if (enabled) {
+                while (rtcss_read(davinci_rtc, PRTCSS_RTC_CTRL)
+                       & PRTCSS_RTC_CTRL_WDTBUS)
+                        cpu_relax();
+
+                rtc_ctrl |= PRTCSS_RTC_CTRL_TE;
+                rtcss_write(davinci_rtc, rtc_ctrl, PRTCSS_RTC_CTRL);
+
+                rtcss_write(davinci_rtc, 0x0, PRTCSS_RTC_CLKC_CNT);
+
+                rtc_ctrl |= PRTCSS_RTC_CTRL_TIEN |
+                            PRTCSS_RTC_CTRL_TMMD |
+                            PRTCSS_RTC_CTRL_TMRFLG;
+        } else
+                rtc_ctrl &= ~PRTCSS_RTC_CTRL_TIEN;
+
+        rtcss_write(davinci_rtc, rtc_ctrl, PRTCSS_RTC_CTRL);
+
+        spin_unlock_irqrestore(&davinci_rtc_lock, flags);
+
+        return 0;
+}
+
+static int davinci_rtc_irq_set_freq(struct device *dev, int freq)
+{
+        struct davinci_rtc *davinci_rtc = dev_get_drvdata(dev);
+        unsigned long flags;
+        u16 tmr_counter = (0x8000 >> (ffs(freq) - 1));
+
+        spin_lock_irqsave(&davinci_rtc_lock, flags);
+
+        rtcss_write(davinci_rtc, tmr_counter & 0xFF, PRTCSS_RTC_TMR0);
+        rtcss_write(davinci_rtc, (tmr_counter & 0xFF00) >> 8, PRTCSS_RTC_TMR1);
+
+        spin_unlock_irqrestore(&davinci_rtc_lock, flags);
+
+        return 0;
+}
+
+static struct rtc_class_ops davinci_rtc_ops = {
+        .ioctl                  = davinci_rtc_ioctl,
+        .read_time              = davinci_rtc_read_time,
+        .set_time               = davinci_rtc_set_time,
+        .alarm_irq_enable       = davinci_rtc_alarm_irq_enable,
+        .read_alarm             = davinci_rtc_read_alarm,
+        .set_alarm              = davinci_rtc_set_alarm,
+        .irq_set_state          = davinci_rtc_irq_set_state,
+        .irq_set_freq           = davinci_rtc_irq_set_freq,
+};
+
+static int __init davinci_rtc_probe(struct platform_device *pdev)
+{
+        struct device *dev = &pdev->dev;
+        struct davinci_rtc *davinci_rtc;
+        struct resource *res, *mem;
+        int ret = 0;
+
+        davinci_rtc = kzalloc(sizeof(struct davinci_rtc), GFP_KERNEL);
+        if (!davinci_rtc) {
+                dev_dbg(dev, "could not allocate memory for private data\n");
+                return -ENOMEM;
+        }
+
+        davinci_rtc->irq = platform_get_irq(pdev, 0);
+        if (davinci_rtc->irq < 0) {
+                dev_err(dev, "no RTC irq\n");
+                ret = davinci_rtc->irq;
+                goto fail1;
+        }
+
+        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+        if (!res) {
+                dev_err(dev, "no mem resource\n");
+                ret = -EINVAL;
+                goto fail1;
+        }
+
+        davinci_rtc->pbase = res->start;
+        davinci_rtc->base_size = resource_size(res);
+
+        mem = request_mem_region(davinci_rtc->pbase, davinci_rtc->base_size,
+                                 pdev->name);
+        if (!mem) {
+                dev_err(dev, "RTC registers at %08x are not free\n",
+                        davinci_rtc->pbase);
+                ret = -EBUSY;
+                goto fail1;
+        }
+
+        davinci_rtc->base = ioremap(davinci_rtc->pbase, davinci_rtc->base_size);
+        if (!davinci_rtc->base) {
+                dev_err(dev, "unable to ioremap MEM resource\n");
+                ret = -ENOMEM;
+                goto fail2;
+        }
+
+        davinci_rtc->rtc = rtc_device_register(pdev->name, &pdev->dev,
+                                    &davinci_rtc_ops, THIS_MODULE);
+        if (IS_ERR(davinci_rtc->rtc)) {
+                dev_err(dev, "unable to register RTC device, err %ld\n",
+                                PTR_ERR(davinci_rtc->rtc));
+                goto fail3;
+        }
+
+        rtcif_write(davinci_rtc, PRTCIF_INTFLG_RTCSS, PRTCIF_INTFLG);
+        rtcif_write(davinci_rtc, 0, PRTCIF_INTEN);
+        rtcss_write(davinci_rtc, 0, PRTCSS_RTC_INTC_EXTENA1);
+
+        rtcss_write(davinci_rtc, 0, PRTCSS_RTC_CTRL);
+        rtcss_write(davinci_rtc, 0, PRTCSS_RTC_CCTRL);
+
+        ret = request_irq(davinci_rtc->irq, davinci_rtc_interrupt,
+                          IRQF_DISABLED, "davinci_rtc", davinci_rtc);
+        if (ret < 0) {
+                dev_err(dev, "unable to register davinci RTC interrupt\n");
+                goto fail4;
+        }
+
+        /* Enable interrupts */
+        rtcif_write(davinci_rtc, PRTCIF_INTEN_RTCSS, PRTCIF_INTEN);
+        rtcss_write(davinci_rtc, PRTCSS_RTC_INTC_EXTENA1_MASK,
+                            PRTCSS_RTC_INTC_EXTENA1);
+
+        rtcss_write(davinci_rtc, PRTCSS_RTC_CCTRL_CAEN, PRTCSS_RTC_CCTRL);
+
+        platform_set_drvdata(pdev, davinci_rtc);
+
+        device_init_wakeup(&pdev->dev, 0);
+
+        return 0;
+
+fail4:
+        rtc_device_unregister(davinci_rtc->rtc);
+fail3:
+        iounmap(davinci_rtc->base);
+fail2:
+        release_mem_region(davinci_rtc->pbase, davinci_rtc->base_size);
+fail1:
+        kfree(davinci_rtc);
+
+        return ret;
+}
+
+static int __devexit davinci_rtc_remove(struct platform_device *pdev)
+{
+        struct davinci_rtc *davinci_rtc = platform_get_drvdata(pdev);
+
+        device_init_wakeup(&pdev->dev, 0);
+
+        rtcif_write(davinci_rtc, 0, PRTCIF_INTEN);
+
+        free_irq(davinci_rtc->irq, davinci_rtc);
+
+        rtc_device_unregister(davinci_rtc->rtc);
+
+        iounmap(davinci_rtc->base);
+        release_mem_region(davinci_rtc->pbase, davinci_rtc->base_size);
+
+        platform_set_drvdata(pdev, NULL);
+
+        kfree(davinci_rtc);
+
+        return 0;
+}
+
+static struct platform_driver davinci_rtc_driver = {
+        .probe          = davinci_rtc_probe,
+        .remove         = __devexit_p(davinci_rtc_remove),
+        .driver         = {
+                .name = "rtc_davinci",
+                .owner = THIS_MODULE,
+        },
+};
+
+static int __init rtc_init(void)
+{
+        return platform_driver_probe(&davinci_rtc_driver, davinci_rtc_probe);
+}
+module_init(rtc_init);
+
+static void __exit rtc_exit(void)
+{
+        platform_driver_unregister(&davinci_rtc_driver);
+}
+module_exit(rtc_exit);
+
+MODULE_AUTHOR("Miguel Aguilar <miguel.aguilar@ridgerun.com>");
+MODULE_DESCRIPTION("Texas Instruments DaVinci PRTC Driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/rtc/rtc-ds1216.c b/drivers/rtc/rtc-ds1216.c
index 4aedc705518c..45cd8c9f5a39 100644
--- a/drivers/rtc/rtc-ds1216.c
+++ b/drivers/rtc/rtc-ds1216.c
@@ -9,6 +9,7 @@
 #include <linux/rtc.h>
 #include <linux/platform_device.h>
 #include <linux/bcd.h>
+#include <linux/slab.h>
 
 #define DRV_VERSION "0.2"
 
diff --git a/drivers/rtc/rtc-ds1286.c b/drivers/rtc/rtc-ds1286.c
index 4fcb16bbff4a..bf430f9091ed 100644
--- a/drivers/rtc/rtc-ds1286.c
+++ b/drivers/rtc/rtc-ds1286.c
@@ -18,6 +18,7 @@
 #include <linux/bcd.h>
 #include <linux/ds1286.h>
 #include <linux/io.h>
+#include <linux/slab.h>
 
 #define DRV_VERSION             "1.0"
 
diff --git a/drivers/rtc/rtc-ds1305.c b/drivers/rtc/rtc-ds1305.c
index 9630e7d3314e..7836c9cec557 100644
--- a/drivers/rtc/rtc-ds1305.c
+++ b/drivers/rtc/rtc-ds1305.c
@@ -11,6 +11,7 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/bcd.h>
+#include <linux/slab.h>
 #include <linux/rtc.h>
 #include <linux/workqueue.h>
 
diff --git a/drivers/rtc/rtc-ds1374.c b/drivers/rtc/rtc-ds1374.c
index 5317bbcbc7a0..61945734ad00 100644
--- a/drivers/rtc/rtc-ds1374.c
+++ b/drivers/rtc/rtc-ds1374.c
@@ -24,6 +24,7 @@
 #include <linux/rtc.h>
 #include <linux/bcd.h>
 #include <linux/workqueue.h>
+#include <linux/slab.h>
 
 #define DS1374_REG_TOD0         0x00 /* Time of Day */
 #define DS1374_REG_TOD1         0x01
diff --git a/drivers/rtc/rtc-ds1390.c b/drivers/rtc/rtc-ds1390.c
index cdb705057091..26a86d235051 100644
--- a/drivers/rtc/rtc-ds1390.c
+++ b/drivers/rtc/rtc-ds1390.c
@@ -19,6 +19,7 @@
 #include <linux/rtc.h>
 #include <linux/spi/spi.h>
 #include <linux/bcd.h>
+#include <linux/slab.h>
 
 #define DS1390_REG_100THS               0x00
 #define DS1390_REG_SECONDS              0x01
diff --git a/drivers/rtc/rtc-ds1511.c b/drivers/rtc/rtc-ds1511.c
index 4166b84cb514..06b8566c4532 100644
--- a/drivers/rtc/rtc-ds1511.c
+++ b/drivers/rtc/rtc-ds1511.c
@@ -17,6 +17,7 @@
 #include <linux/bcd.h>
 #include <linux/init.h>
 #include <linux/kernel.h>
+#include <linux/gfp.h>
 #include <linux/delay.h>
 #include <linux/interrupt.h>
 #include <linux/rtc.h>
diff --git a/drivers/rtc/rtc-ds1553.c b/drivers/rtc/rtc-ds1553.c
index ed1ef7c9cc06..244f9994bcbb 100644
--- a/drivers/rtc/rtc-ds1553.c
+++ b/drivers/rtc/rtc-ds1553.c
@@ -11,6 +11,7 @@
 #include <linux/bcd.h>
 #include <linux/init.h>
 #include <linux/kernel.h>
+#include <linux/gfp.h>
 #include <linux/delay.h>
 #include <linux/jiffies.h>
 #include <linux/interrupt.h>
diff --git a/drivers/rtc/rtc-ds1742.c b/drivers/rtc/rtc-ds1742.c
index a1273360a44e..2b4b0bc42d6f 100644
--- a/drivers/rtc/rtc-ds1742.c
+++ b/drivers/rtc/rtc-ds1742.c
@@ -15,6 +15,7 @@
 #include <linux/bcd.h>
 #include <linux/init.h>
 #include <linux/kernel.h>
+#include <linux/gfp.h>
 #include <linux/delay.h>
 #include <linux/jiffies.h>
 #include <linux/rtc.h>
@@ -184,6 +185,7 @@ static int __devinit ds1742_rtc_probe(struct platform_device *pdev)
         pdata->size_nvram = pdata->size - RTC_SIZE;
         pdata->ioaddr_rtc = ioaddr + pdata->size_nvram;
 
+        sysfs_bin_attr_init(&pdata->nvram_attr);
         pdata->nvram_attr.attr.name = "nvram";
         pdata->nvram_attr.attr.mode = S_IRUGO | S_IWUSR;
         pdata->nvram_attr.read = ds1742_nvram_read;
diff --git a/drivers/rtc/rtc-ep93xx.c b/drivers/rtc/rtc-ep93xx.c
index 91bde976bc0f..11ae64dcbf3c 100644
--- a/drivers/rtc/rtc-ep93xx.c
+++ b/drivers/rtc/rtc-ep93xx.c
@@ -13,6 +13,7 @@
 #include <linux/rtc.h>
 #include <linux/platform_device.h>
 #include <linux/io.h>
+#include <linux/gfp.h>
 
 #define EP93XX_RTC_DATA                 0x000
 #define EP93XX_RTC_MATCH                0x004
diff --git a/drivers/rtc/rtc-fm3130.c b/drivers/rtc/rtc-fm3130.c
index 812c66755083..ff6fce61ea41 100644
--- a/drivers/rtc/rtc-fm3130.c
+++ b/drivers/rtc/rtc-fm3130.c
@@ -13,6 +13,7 @@
 #include <linux/i2c.h>
 #include <linux/rtc.h>
 #include <linux/bcd.h>
+#include <linux/slab.h>
 
 #define FM3130_RTC_CONTROL      (0x0)
 #define FM3130_CAL_CONTROL      (0x1)
diff --git a/drivers/rtc/rtc-m48t35.c b/drivers/rtc/rtc-m48t35.c
index 8cb5b8959e5b..7410875e5838 100644
--- a/drivers/rtc/rtc-m48t35.c
+++ b/drivers/rtc/rtc-m48t35.c
@@ -16,6 +16,7 @@
 
 #include <linux/module.h>
 #include <linux/rtc.h>
+#include <linux/slab.h>
 #include <linux/platform_device.h>
 #include <linux/bcd.h>
 #include <linux/io.h>
diff --git a/drivers/rtc/rtc-m48t59.c b/drivers/rtc/rtc-m48t59.c
index ede43b846859..365ff3ac2348 100644
--- a/drivers/rtc/rtc-m48t59.c
+++ b/drivers/rtc/rtc-m48t59.c
@@ -19,6 +19,7 @@
 #include <linux/rtc.h>
 #include <linux/rtc/m48t59.h>
 #include <linux/bcd.h>
+#include <linux/slab.h>
 
 #ifndef NO_IRQ
 #define NO_IRQ  (-1)
diff --git a/drivers/rtc/rtc-max8925.c b/drivers/rtc/rtc-max8925.c
index acdbb1760187..174036dda786 100644
--- a/drivers/rtc/rtc-max8925.c
+++ b/drivers/rtc/rtc-max8925.c
@@ -11,6 +11,7 @@
 
 #include <linux/module.h>
 #include <linux/i2c.h>
+#include <linux/slab.h>
 #include <linux/rtc.h>
 #include <linux/platform_device.h>
 #include <linux/mfd/max8925.h>
diff --git a/drivers/rtc/rtc-mc13783.c b/drivers/rtc/rtc-mc13783.c
index d60c81b7b693..675bfb515367 100644
--- a/drivers/rtc/rtc-mc13783.c
+++ b/drivers/rtc/rtc-mc13783.c
@@ -13,6 +13,7 @@
 #include <linux/platform_device.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
+#include <linux/slab.h>
 #include <linux/rtc.h>
 
 #define DRIVER_NAME "mc13783-rtc"
@@ -319,35 +320,38 @@ static int __devinit mc13783_rtc_probe(struct platform_device *pdev)
 {
         int ret;
         struct mc13783_rtc *priv;
+        struct mc13783 *mc13783;
         int rtcrst_pending;
 
         priv = kzalloc(sizeof(*priv), GFP_KERNEL);
         if (!priv)
                 return -ENOMEM;
 
-        priv->mc13783 = dev_get_drvdata(pdev->dev.parent);
+        mc13783 = dev_get_drvdata(pdev->dev.parent);
+        priv->mc13783 = mc13783;
+
         platform_set_drvdata(pdev, priv);
 
-        mc13783_lock(priv->mc13783);
+        mc13783_lock(mc13783);
 
-        ret = mc13783_irq_request(priv->mc13783, MC13783_IRQ_RTCRST,
+        ret = mc13783_irq_request(mc13783, MC13783_IRQ_RTCRST,
                         mc13783_rtc_reset_handler, DRIVER_NAME, priv);
         if (ret)
                 goto err_reset_irq_request;
 
-        ret = mc13783_irq_status(priv->mc13783, MC13783_IRQ_RTCRST,
+        ret = mc13783_irq_status(mc13783, MC13783_IRQ_RTCRST,
                         NULL, &rtcrst_pending);
         if (ret)
                 goto err_reset_irq_status;
 
         priv->valid = !rtcrst_pending;
 
-        ret = mc13783_irq_request_nounmask(priv->mc13783, MC13783_IRQ_1HZ,
+        ret = mc13783_irq_request_nounmask(mc13783, MC13783_IRQ_1HZ,
                         mc13783_rtc_update_handler, DRIVER_NAME, priv);
         if (ret)
                 goto err_update_irq_request;
 
-        ret = mc13783_irq_request_nounmask(priv->mc13783, MC13783_IRQ_TODA,
+        ret = mc13783_irq_request_nounmask(mc13783, MC13783_IRQ_TODA,
                         mc13783_rtc_alarm_handler, DRIVER_NAME, priv);
         if (ret)
                 goto err_alarm_irq_request;
@@ -357,22 +361,22 @@ static int __devinit mc13783_rtc_probe(struct platform_device *pdev)
         if (IS_ERR(priv->rtc)) {
                 ret = PTR_ERR(priv->rtc);
 
-                mc13783_irq_free(priv->mc13783, MC13783_IRQ_TODA, priv);
+                mc13783_irq_free(mc13783, MC13783_IRQ_TODA, priv);
 err_alarm_irq_request:
 
-                mc13783_irq_free(priv->mc13783, MC13783_IRQ_1HZ, priv);
+                mc13783_irq_free(mc13783, MC13783_IRQ_1HZ, priv);
 err_update_irq_request:
 
 err_reset_irq_status:
 
-                mc13783_irq_free(priv->mc13783, MC13783_IRQ_RTCRST, priv);
+                mc13783_irq_free(mc13783, MC13783_IRQ_RTCRST, priv);
 err_reset_irq_request:
 
                 platform_set_drvdata(pdev, NULL);
                 kfree(priv);
         }
 
-        mc13783_unlock(priv->mc13783);
+        mc13783_unlock(mc13783);
 
         return ret;
 }
diff --git a/drivers/rtc/rtc-mpc5121.c b/drivers/rtc/rtc-mpc5121.c
index 4313ca03a96d..f0dbf9cb8f9c 100644
--- a/drivers/rtc/rtc-mpc5121.c
+++ b/drivers/rtc/rtc-mpc5121.c
@@ -15,6 +15,7 @@
 #include <linux/of_device.h>
 #include <linux/of_platform.h>
 #include <linux/io.h>
+#include <linux/slab.h>
 
 struct mpc5121_rtc_regs {
         u8 set_time;            /* RTC + 0x00 */
diff --git a/drivers/rtc/rtc-msm6242.c b/drivers/rtc/rtc-msm6242.c
index 5f5968a48925..b2fff0ca49f8 100644
--- a/drivers/rtc/rtc-msm6242.c
+++ b/drivers/rtc/rtc-msm6242.c
@@ -13,6 +13,7 @@
 #include <linux/module.h>
 #include <linux/platform_device.h>
 #include <linux/rtc.h>
+#include <linux/slab.h>
 
 
 enum {
diff --git a/drivers/rtc/rtc-mv.c b/drivers/rtc/rtc-mv.c
index dc052ce6e63a..bcca47298554 100644
--- a/drivers/rtc/rtc-mv.c
+++ b/drivers/rtc/rtc-mv.c
@@ -13,6 +13,7 @@
 #include <linux/io.h>
 #include <linux/platform_device.h>
 #include <linux/delay.h>
+#include <linux/gfp.h>
 
 
 #define RTC_TIME_REG_OFFS       0
diff --git a/drivers/rtc/rtc-mxc.c b/drivers/rtc/rtc-mxc.c
index 8710f9415d98..d71fe61db1d6 100644
--- a/drivers/rtc/rtc-mxc.c
+++ b/drivers/rtc/rtc-mxc.c
@@ -12,6 +12,7 @@
 #include <linux/io.h>
 #include <linux/rtc.h>
 #include <linux/module.h>
+#include <linux/slab.h>
 #include <linux/interrupt.h>
 #include <linux/platform_device.h>
 #include <linux/clk.h>
@@ -383,21 +384,26 @@ static int __init mxc_rtc_probe(struct platform_device *pdev)
         struct rtc_device *rtc;
         struct rtc_plat_data *pdata = NULL;
         u32 reg;
-        int ret, rate;
+        unsigned long rate;
+        int ret;
 
         res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
         if (!res)
                 return -ENODEV;
 
-        pdata = kzalloc(sizeof(*pdata), GFP_KERNEL);
+        pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
         if (!pdata)
                 return -ENOMEM;
 
-        pdata->ioaddr = ioremap(res->start, resource_size(res));
+        if (!devm_request_mem_region(&pdev->dev, res->start,
+                                     resource_size(res), pdev->name))
+                return -EBUSY;
+
+        pdata->ioaddr = devm_ioremap(&pdev->dev, res->start,
+                                     resource_size(res));
 
         clk = clk_get(&pdev->dev, "ckil");
         if (IS_ERR(clk)) {
-                iounmap(pdata->ioaddr);
                 ret = PTR_ERR(clk);
                 goto exit_free_pdata;
         }
@@ -412,8 +418,7 @@ static int __init mxc_rtc_probe(struct platform_device *pdev)
         else if (rate == 38400)
                 reg = RTC_INPUT_CLK_38400HZ;
         else {
-                dev_err(&pdev->dev, "rtc clock is not valid (%lu)\n",
-                        clk_get_rate(clk));
+                dev_err(&pdev->dev, "rtc clock is not valid (%lu)\n", rate);
                 ret = -EINVAL;
                 goto exit_free_pdata;
         }
@@ -449,8 +454,8 @@ static int __init mxc_rtc_probe(struct platform_device *pdev)
         pdata->irq = platform_get_irq(pdev, 0);
 
         if (pdata->irq >= 0 &&
-            request_irq(pdata->irq, mxc_rtc_interrupt, IRQF_SHARED,
-                        pdev->name, pdev) < 0) {
+            devm_request_irq(&pdev->dev, pdata->irq, mxc_rtc_interrupt,
+                             IRQF_SHARED, pdev->name, pdev) < 0) {
                 dev_warn(&pdev->dev, "interrupt not available.\n");
                 pdata->irq = -1;
         }
@@ -458,10 +463,10 @@ static int __init mxc_rtc_probe(struct platform_device *pdev)
         return 0;
 
 exit_put_clk:
+        clk_disable(pdata->clk);
         clk_put(pdata->clk);
 
 exit_free_pdata:
-        kfree(pdata);
 
         return ret;
 }
@@ -472,12 +477,8 @@ static int __exit mxc_rtc_remove(struct platform_device *pdev)
 
         rtc_device_unregister(pdata->rtc);
 
-        if (pdata->irq >= 0)
-                free_irq(pdata->irq, pdev);
-
         clk_disable(pdata->clk);
         clk_put(pdata->clk);
-        kfree(pdata);
         platform_set_drvdata(pdev, NULL);
 
         return 0;
diff --git a/drivers/rtc/rtc-nuc900.c b/drivers/rtc/rtc-nuc900.c
index bf59c9c586b2..a351bd5d8176 100644
--- a/drivers/rtc/rtc-nuc900.c
+++ b/drivers/rtc/rtc-nuc900.c
@@ -12,6 +12,7 @@
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/platform_device.h>
+#include <linux/slab.h>
 #include <linux/rtc.h>
 #include <linux/delay.h>
 #include <linux/io.h>
diff --git a/drivers/rtc/rtc-pcap.c b/drivers/rtc/rtc-pcap.c
index a99c28992d21..25c0b3fd44f1 100644
--- a/drivers/rtc/rtc-pcap.c
+++ b/drivers/rtc/rtc-pcap.c
@@ -17,6 +17,7 @@
 #include <linux/init.h>
 #include <linux/mfd/ezx-pcap.h>
 #include <linux/rtc.h>
+#include <linux/slab.h>
 #include <linux/platform_device.h>
 
 struct pcap_rtc {
diff --git a/drivers/rtc/rtc-pcf2123.c b/drivers/rtc/rtc-pcf2123.c
index 2ceb365533b2..71bab0ef5443 100644
--- a/drivers/rtc/rtc-pcf2123.c
+++ b/drivers/rtc/rtc-pcf2123.c
@@ -39,6 +39,7 @@
 #include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/string.h>
+#include <linux/slab.h>
 #include <linux/rtc.h>
 #include <linux/spi/spi.h>
 
diff --git a/drivers/rtc/rtc-pcf50633.c b/drivers/rtc/rtc-pcf50633.c
index 854c3cb365a1..16edf94ab42f 100644
--- a/drivers/rtc/rtc-pcf50633.c
+++ b/drivers/rtc/rtc-pcf50633.c
@@ -18,6 +18,7 @@
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/device.h>
+#include <linux/slab.h>
 #include <linux/platform_device.h>
 #include <linux/rtc.h>
 #include <linux/bcd.h>
diff --git a/drivers/rtc/rtc-pcf8563.c b/drivers/rtc/rtc-pcf8563.c
index 65f346b2fbae..1af42b4a6f59 100644
--- a/drivers/rtc/rtc-pcf8563.c
+++ b/drivers/rtc/rtc-pcf8563.c
@@ -17,6 +17,7 @@
 #include <linux/i2c.h>
 #include <linux/bcd.h>
 #include <linux/rtc.h>
+#include <linux/slab.h>
 
 #define DRV_VERSION "0.4.3"
 
diff --git a/drivers/rtc/rtc-pl030.c b/drivers/rtc/rtc-pl030.c
index 457231bb1029..bbdb2f02798a 100644
--- a/drivers/rtc/rtc-pl030.c
+++ b/drivers/rtc/rtc-pl030.c
@@ -13,6 +13,7 @@
 #include <linux/interrupt.h>
 #include <linux/amba/bus.h>
 #include <linux/io.h>
+#include <linux/slab.h>
 
 #define RTC_DR          (0)
 #define RTC_MR          (4)
diff --git a/drivers/rtc/rtc-pl031.c b/drivers/rtc/rtc-pl031.c
index c256aacfa954..3587d9922f28 100644
--- a/drivers/rtc/rtc-pl031.c
+++ b/drivers/rtc/rtc-pl031.c
@@ -24,6 +24,7 @@
 #include <linux/bcd.h>
 #include <linux/delay.h>
 #include <linux/version.h>
+#include <linux/slab.h>
 
 /*
  * Register definitions
diff --git a/drivers/rtc/rtc-pxa.c b/drivers/rtc/rtc-pxa.c
index e6351b743da6..e9c6fa035989 100644
--- a/drivers/rtc/rtc-pxa.c
+++ b/drivers/rtc/rtc-pxa.c
@@ -26,6 +26,7 @@
 #include <linux/seq_file.h>
 #include <linux/interrupt.h>
 #include <linux/io.h>
+#include <linux/slab.h>
 
 #include <mach/hardware.h>
 
diff --git a/drivers/rtc/rtc-rp5c01.c b/drivers/rtc/rtc-rp5c01.c
index e1313feb060f..a95f733bb15a 100644
--- a/drivers/rtc/rtc-rp5c01.c
+++ b/drivers/rtc/rtc-rp5c01.c
@@ -12,6 +12,7 @@
 #include <linux/module.h>
 #include <linux/platform_device.h>
 #include <linux/rtc.h>
+#include <linux/slab.h>
 
 
 enum {
diff --git a/drivers/rtc/rtc-rs5c348.c b/drivers/rtc/rtc-rs5c348.c
index 2099037cb3ea..368d0e63cf83 100644
--- a/drivers/rtc/rtc-rs5c348.c
+++ b/drivers/rtc/rtc-rs5c348.c
@@ -19,6 +19,7 @@
 #include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/string.h>
+#include <linux/slab.h>
 #include <linux/rtc.h>
 #include <linux/workqueue.h>
 #include <linux/spi/spi.h>
diff --git a/drivers/rtc/rtc-rs5c372.c b/drivers/rtc/rtc-rs5c372.c
index 2f2c68d476da..90cf0a6ff23e 100644
--- a/drivers/rtc/rtc-rs5c372.c
+++ b/drivers/rtc/rtc-rs5c372.c
@@ -13,6 +13,7 @@
 #include <linux/i2c.h>
 #include <linux/rtc.h>
 #include <linux/bcd.h>
+#include <linux/slab.h>
 
 #define DRV_VERSION "0.6"
 
diff --git a/drivers/rtc/rtc-rx8025.c b/drivers/rtc/rtc-rx8025.c
index b1a29bcfdf13..b65c82f792d9 100644
--- a/drivers/rtc/rtc-rx8025.c
+++ b/drivers/rtc/rtc-rx8025.c
@@ -20,6 +20,7 @@
  */
 #include <linux/kernel.h>
 #include <linux/module.h>
+#include <linux/slab.h>
 #include <linux/init.h>
 #include <linux/bcd.h>
 #include <linux/i2c.h>
diff --git a/drivers/rtc/rtc-rx8581.c b/drivers/rtc/rtc-rx8581.c
index c9522f3bc21c..9718aaaa8215 100644
--- a/drivers/rtc/rtc-rx8581.c
+++ b/drivers/rtc/rtc-rx8581.c
@@ -1,8 +1,8 @@
 /*
  * An I2C driver for the Epson RX8581 RTC
  *
- * Author: Martyn Welch <martyn.welch@gefanuc.com>
- * Copyright 2008 GE Fanuc Intelligent Platforms Embedded Systems, Inc.
+ * Author: Martyn Welch <martyn.welch@ge.com>
+ * Copyright 2008 GE Intelligent Platforms Embedded Systems, Inc.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -272,7 +272,7 @@ static void __exit rx8581_exit(void)
         i2c_del_driver(&rx8581_driver);
 }
 
-MODULE_AUTHOR("Martyn Welch <martyn.welch@gefanuc.com>");
+MODULE_AUTHOR("Martyn Welch <martyn.welch@ge.com>");
 MODULE_DESCRIPTION("Epson RX-8581 RTC driver");
 MODULE_LICENSE("GPL");
 MODULE_VERSION(DRV_VERSION);
diff --git a/drivers/rtc/rtc-s3c.c b/drivers/rtc/rtc-s3c.c
index e0d7b9991505..4969b6059c89 100644
--- a/drivers/rtc/rtc-s3c.c
+++ b/drivers/rtc/rtc-s3c.c
@@ -21,6 +21,7 @@
 #include <linux/bcd.h>
 #include <linux/clk.h>
 #include <linux/log2.h>
+#include <linux/slab.h>
 
 #include <mach/hardware.h>
 #include <asm/uaccess.h>
diff --git a/drivers/rtc/rtc-sh.c b/drivers/rtc/rtc-sh.c
index e95cc6f8d61e..5efbd5990ff8 100644
--- a/drivers/rtc/rtc-sh.c
+++ b/drivers/rtc/rtc-sh.c
@@ -26,6 +26,7 @@
 #include <linux/io.h>
 #include <linux/log2.h>
 #include <linux/clk.h>
+#include <linux/slab.h>
 #include <asm/rtc.h>
 
 #define DRV_NAME        "sh-rtc"
diff --git a/drivers/rtc/rtc-stk17ta8.c b/drivers/rtc/rtc-stk17ta8.c
index 67700831b5c9..b53a00198dbe 100644
--- a/drivers/rtc/rtc-stk17ta8.c
+++ b/drivers/rtc/rtc-stk17ta8.c
@@ -1,7 +1,7 @@
 /*
  * A RTC driver for the Simtek STK17TA8
  *
- * By Thomas Hommel <thomas.hommel@gefanuc.com>
+ * By Thomas Hommel <thomas.hommel@ge.com>
  *
  * Based on the DS1553 driver from
  * Atsushi Nemoto <anemo@mba.ocn.ne.jp>
@@ -14,6 +14,7 @@
 #include <linux/bcd.h>
 #include <linux/init.h>
 #include <linux/kernel.h>
+#include <linux/gfp.h>
 #include <linux/delay.h>
 #include <linux/jiffies.h>
 #include <linux/interrupt.h>
@@ -381,7 +382,7 @@ static __exit void stk17ta8_exit(void)
 module_init(stk17ta8_init);
 module_exit(stk17ta8_exit);
 
-MODULE_AUTHOR("Thomas Hommel <thomas.hommel@gefanuc.com>");
+MODULE_AUTHOR("Thomas Hommel <thomas.hommel@ge.com>");
 MODULE_DESCRIPTION("Simtek STK17TA8 RTC driver");
 MODULE_LICENSE("GPL");
 MODULE_VERSION(DRV_VERSION);
diff --git a/drivers/rtc/rtc-stmp3xxx.c b/drivers/rtc/rtc-stmp3xxx.c
index d7ce1a5c857d..7e7d0c806f2d 100644
--- a/drivers/rtc/rtc-stmp3xxx.c
+++ b/drivers/rtc/rtc-stmp3xxx.c
@@ -22,6 +22,7 @@
 #include <linux/platform_device.h>
 #include <linux/interrupt.h>
 #include <linux/rtc.h>
+#include <linux/slab.h>
 
 #include <mach/platform.h>
 #include <mach/stmp3xxx.h>
diff --git a/drivers/rtc/rtc-sysfs.c b/drivers/rtc/rtc-sysfs.c
index 7dd23a6fc825..380083ca572f 100644
--- a/drivers/rtc/rtc-sysfs.c
+++ b/drivers/rtc/rtc-sysfs.c
@@ -107,8 +107,9 @@ rtc_sysfs_show_hctosys(struct device *dev, struct device_attribute *attr,
                 char *buf)
 {
 #ifdef CONFIG_RTC_HCTOSYS_DEVICE
-        if (strcmp(dev_name(&to_rtc_device(dev)->dev),
-                   CONFIG_RTC_HCTOSYS_DEVICE) == 0)
+        if (rtc_hctosys_ret == 0 &&
+                        strcmp(dev_name(&to_rtc_device(dev)->dev),
+                                CONFIG_RTC_HCTOSYS_DEVICE) == 0)
                 return sprintf(buf, "1\n");
         else
 #endif
diff --git a/drivers/rtc/rtc-tx4939.c b/drivers/rtc/rtc-tx4939.c
index 9ee81d8aa7c0..20bfc64a15c8 100644
--- a/drivers/rtc/rtc-tx4939.c
+++ b/drivers/rtc/rtc-tx4939.c
@@ -12,6 +12,7 @@
 #include <linux/platform_device.h>
 #include <linux/interrupt.h>
 #include <linux/io.h>
+#include <linux/gfp.h>
 #include <asm/txx9/tx4939.h>
 
 struct tx4939rtc_plat_data {
diff --git a/drivers/rtc/rtc-v3020.c b/drivers/rtc/rtc-v3020.c
index bed4cab07043..f71c3ce18036 100644
--- a/drivers/rtc/rtc-v3020.c
+++ b/drivers/rtc/rtc-v3020.c
@@ -28,6 +28,7 @@
 #include <linux/rtc-v3020.h>
 #include <linux/delay.h>
 #include <linux/gpio.h>
+#include <linux/slab.h>
 
 #include <linux/io.h>
 
diff --git a/drivers/rtc/rtc-wm831x.c b/drivers/rtc/rtc-wm831x.c
index 000c7e481e59..b16cfe57a484 100644
--- a/drivers/rtc/rtc-wm831x.c
+++ b/drivers/rtc/rtc-wm831x.c
@@ -16,6 +16,7 @@
 #include <linux/kernel.h>
 #include <linux/time.h>
 #include <linux/rtc.h>
+#include <linux/slab.h>
 #include <linux/bcd.h>
 #include <linux/interrupt.h>
 #include <linux/ioctl.h>